cupoftea
Advanced Member level 6
Hi,
We want to switch high currents in the mains. Obviously prefer to use FETs (rather than triacs, SCRs or IGBTs)) but recognise there will be a need for diverter/snubber/protection/damping circuits etc
There is a need to break short circuit currents, when short circuits happen.
Post #27 of this shows relevant info
www.edaboard.com
..i have been searching for at least two other threads where Easy Peasy wrote some really useful stuff on edaboard on this but can't find the threads now. Please can you help in locating?
We want to switch high currents in the mains. Obviously prefer to use FETs (rather than triacs, SCRs or IGBTs)) but recognise there will be a need for diverter/snubber/protection/damping circuits etc
There is a need to break short circuit currents, when short circuits happen.
Post #27 of this shows relevant info
Using IGBT or Mosfet
Hi all, I need to make a simple boost converter for boosting from 48 V to 192V at 1.2kW. I have need a suggestion regarding which would be apt device for the active switching device (IRF300P226 Mosfet (2 in parallel) ) or (FGH50T65UPD IGBT (2 in parallel)). Which would give lower overall loss...
..i have been searching for at least two other threads where Easy Peasy wrote some really useful stuff on edaboard on this but can't find the threads now. Please can you help in locating?
I need to design a load switch for one solar powered project.. I have 30A dc relays in stock, but they are bit too close spec vise since they may need to drop the load off in some cases from full current (eg. in fault situation) and load is typically in the range of 26-27A..(voltage will be highest at 80V) so in my playbook that's a bit too much asked from a relay.. also their coil alone consumes 1W and i've measured about 5W loss from contacts at around 22A.. Now..i see that if i'd put 4 of IRFP4310's parallel as a low side switch i'd be losing only <2W total..And since it's solar, when there is very little sun, the relay coil will consume it's power all the time as per here, the switch conduction loss would be non existent.. I have a circuit in my head already, but at this point i'm usually very interested comparing stuff and parameters and component selection up until the point i'm making a proto..